Liquid dispensing head and liquid dispensing device
AssigneeRISO Technologies Corporation
InventorsTaiki Goto, Shinichiro Hida, Masashi Shimosato
Life of this patent
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Abstract
According to an embodiment, a liquid dispensing head includes a substrate having a first surface and a piezoelectric member on the first surface of the substrate. A sidewall surface portion of the piezoelectric member is inclined at an obtuse angle with respect to the first surface. A vibration plate is positioned above the piezoelectric member in a first direction orthogonal to the first surface. An electrode wiring portion is on the sidewall surface portion and connected to an electrode wiring pattern on the first surface.
Claims20
A liquid dispensing head, comprising:
- a substrate having a first surface;
- a piezoelectric member on the first surface of the substrate, a sidewall surface portion of the piezoelectric member being inclined at an obtuse angle with respect to the first surface;
- a vibration plate above the piezoelectric member in a first direction orthogonal to the first surface;
- and
- an electrode wiring portion on the sidewall surface portion and connected to an electrode wiring pattern on the first surface.
An inkjet head, comprising:
- a substrate having a first surface;
- a piezoelectric member on the first surface of the substrate, a sidewall surface portion of the piezoelectric member being inclined at an obtuse angle with respect to the first surface, an opposite sidewall surface portion being at an approximately right angle with respect to the first surface;
- a vibration plate above the piezoelectric member in a first direction orthogonal to the first surface;
- a nozzle plate above the vibration in the first direction;
- a plurality of pressure chambers between the vibration plate and the nozzle plate;
- a plurality of grooves extending into the piezoelectric member in the first direction from an upper surface of the piezoelectric member;
- a plurality of individual electrode portions on the sidewall surface portion, each individual electrode portion connected to an electrode wiring pattern on the first surface;
- a plurality of common electrode portions on the opposite sidewall surface portion, each common electrode portion connected to a common electrode on the first surface;
- a plurality of substrate wiring portions in the electrode wiring pattern on the first surface, each substrate wiring portion being connected to a respective individual electrode wiring portion at a position where the sidewall surface portion meets the first surface;
- an anisotropic conductive film on the substrate wiring portions;
- a flexible wiring substrate connected to the plurality of wiring substrate portions by the anisotropic conductive film;
- and
- an electronic component on the flexible wiring substrate, at least one individual electrode portion being electrically connected to the electronic component.
A liquid dispensing device, comprising:
- a liquid supply source;
- a liquid dispensing head connected to the liquid supply and including:
- a substrate having a first surface;
- a piezoelectric member on the first surface of the substrate, a sidewall surface portion of the piezoelectric member being inclined at an obtuse angle with respect to the first surface;
- a vibration plate above the piezoelectric member in a first direction orthogonal to the first surface;
- and
- an electrode wiring portion on the sidewall surface portion and connected to an electrode wiring pattern on the first surface.
Dependencies are inferred from the claim text.